This series incorporates a complete public address and intercom subsystem. This subsystem is composed of the following main elements:
- Central Rack: It incorporates the functions of analog and digital control; PA input, amplification and output; alarm audio; microphone audio; and displaing of the operating status of the equipment.
- Booster Rack: It incorporates the functions of input, amplification and public address output and displaying of the operating status of the equipment.
- Intercoms: They allow communication between Supervisor, Driver and Passengers.
Central Rack. In addition to the PA and Intercom functions, it also generates 4 channels of digital audio to seats.
Intercom equipment allows communication between Supervisor, Driver and Passengers. It also allows the Land-Train system to broadcast audio on the train.
The public address subsystem has Booster Racks that amplify and output the PA audio. In the car that has installed the Central Rack it's this rack what performs this function in the restaurant car.